This stock has a beautiful glowing patina and is in very good solid condition. The fancy P Inside Circle on the butt grip underside likely.
Places this to the Springfield armory somewhere around 1917. Please look closely at all the stamp marks to make your own judgements. One of the pictures shows what appears to be a crack on the edge of the magazine cutout, but we scrutinized very closely and it is indeed just a mild scratch that virtually resembles a crack but is not. The item "WWI 1903 Springfield Finger Groove Rifle Stock C. 1917 AAB & P In Circle stamped" is in sale since Tuesday, August 31, 2021.
This item is in the category "Collectibles\Militaria\WW I (1914-18)\Original Period Items\United States\Personal, Field Gear". The seller is "thodee_39" and is located in Rochester, New York. This item can be shipped to United States.